Well, first things first, you must be aware that JavaScript is a bad language, broken in many ways and mostly executed in a random fashion (i.e. almost no platform follows 100% ECMA, and even some ECMA directives are retarded, like ECMA4 didn't force chrome to return object properties in creation order by default, whereas ECMA5 fixes that to the default behavior we've always seen and expected).

In that sense, writing good JavaScript is like writing good PHP or good C++, it's a lot about avoiding the broken features (for both those languages, there are a lot of features one shouldn't use, it's even more true with js).

That means you should only learn from people who recognize how broken js is, and thus of course js: the good parts sounds like the right direction, whereas I think Resig is a religious zealot and shouldn't be listened to (the guy actually thinks broken js as a first language is a good idea).

Lastly, js is broken in many ways, don't use it when you don't have to, that means avoid node.js and use a good server side language instead.

tl;dr js sucks, don't listen to people who don't ack that, learn to avoid the sucky parts instead.

And more downvotes from the zealots... HN is so predictable these days.